Owners of Tesla's all-electric Model S sedan will be able to charge their cars for free soon at a “supercharger” station in San Marcos.

Tesla Motors Inc. announced Wednesday that it would debut the charging station on Aug. 20 at the San Marcos Premium Outlets, according to a news release. It will be Tesla's first Supercharger in Texas.

With only 17 other stations across the U.S., the Palo Alto, Calif.-based automaker said Superchargers provide half of a full charge in 20 minutes and allow drivers to travel for about three hours. The company plans to open four more stations in the state before the end of 2013, with its second opening in two weeks in Waco, according to a spokesperson.

Tesla previously announced its first Supercharger in Texas would open in Dallas, but the spokesperson said the “unpredictable nature of permits and inspection” caused construction in San Marcos to finish earlier.